package com.anjiplus.template.gaea.business.modules.file.util;

import lombok.extern.slf4j.Slf4j;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;

/**
 * Created by raodeming on 2021/7/8.
 */
@Slf4j
public class FileUtils {

	public static byte[] readFileToByteArray(File file) {
		byte[] buffer = null;
		try {
			FileInputStream fis = new FileInputStream(file);
			ByteArrayOutputStream bos = new ByteArrayOutputStream();
			byte[] b = new byte[1024];
			int n;
			while ((n = fis.read(b)) != -1) {
				bos.write(b, 0, n);
			}
			fis.close();
			bos.close();
			buffer = bos.toByteArray();
		}
		catch (IOException e) {
			log.error("error", e);
		}
		return buffer;
	}

}
